IKJ56228I DATA SET LST.F.STAT.AGE.LETRS.DAY NOT IN CATALOG OR CATALOG CAN NOT B
E ACCESSED
IKJ56701I MISSING DATA SET NAME+
IKJ56701I MISSING NAME OF DATA SET TO BE ALLOCATED
IKJ56228I DATA SET LST.F.STAT.AGE.LETRS.DAY.G0001V00 NOT IN CATALOG OR CATALOG
CAN NOT BE ACCESSED
IKJ56701I MISSING DATA SET NAME+
IKJ56701I MISSING NAME OF DATA SET TO BE ALLOCATED
GDG CREATED
LST.F.STAT.AGE.LETRS.DAY.G0001V00
LST.F.STAT.AGE.LETRS.DAY.G0001V00 NOT LISTED
LST.F.STAT.AGE.LETRS.DAY.G0001V00 NOT LISTED

Ok here come my question: Now as I have defined a GDG i need to create the next empty generation of the same how can i do that.

That's an easy one to answer - look back at the previous thread that you started on the topic of creating GDG's, link below, follow the link that superk gave you, then read the whole thread thoroughly and use the code of mine that is posted in that thread. Had you have read the previous replies properly you would not need to ask the same question again.